April 6 founder Ahmed Maher has survived a serious car accident in which his car was written off.
Maher's car hit a parked truck on the Cairo ring road on Monday.
He was taken to Ahly Bank Hospital and released shortly afterwards.
Maher is currently at South Cairo police station filing a report into the incident.
Mohamed Adel, a founding member of April 6, said Maher has injuries to his arm and leg but they are not serious.
Maher doesn’t know if the accident was caused by a criminal act or not, Adel added.
Police arrested Maher on Friday for "inciting protests" outside the interior minister’s Cairo residence in March.
He was released from detention on Saturday, pending investigations into the allegations by the prosecutor-general.
After his release on Saturday, Maher said, "What is taking place now is worse than what was being experienced during Mubarak’s time," and the only difference is that Morsi is doing it with a religious tint.